[fsp] Add the getMetadata operation.

chrome/browser/chromeos/file_system_provider/fake_provided_file_system.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/file_system_provider/fake_provided_file_system.h"
 
 #include "base/files/file.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "extensions/browser/event_router.h"
 
 namespace chromeos {
 namespace file_system_provider {
 
 FakeProvidedFileSystem::FakeProvidedFileSystem(
     const ProvidedFileSystemInfo& file_system_info)
     : file_system_info_(file_system_info) {
 }
 
 FakeProvidedFileSystem::~FakeProvidedFileSystem() {}
 
 void FakeProvidedFileSystem::RequestUnmount(
     const fileapi::AsyncFileUtil::StatusCallback& callback) {
   base::MessageLoopProxy::current()->PostTask(
       FROM_HERE, base::Bind(callback, base::File::FILE_OK));
 }
 
+void FakeProvidedFileSystem::GetMetadata(
+    const base::FilePath& entry_path,
+    const fileapi::AsyncFileUtil::GetFileInfoCallback& callback) {
+  // Return fake metadata for the root directory only.
+  if (entry_path.AsUTF8Unsafe() != "/") {
+    base::MessageLoopProxy::current()->PostTask(
+        FROM_HERE,
+        base::Bind(
+            callback, base::File::FILE_ERROR_NOT_FOUND, base::File::Info()));
+    return;
+  }
+
+  base::File::Info file_info;
+  file_info.size = 0;
+  file_info.is_directory = true;
+  file_info.is_symbolic_link = false;
+  base::Time last_modified_time;
+  const bool result = base::Time::FromString("Thu Apr 24 00:46:52 UTC 2014",
+                                             &last_modified_time);
+  DCHECK(result);
+  file_info.last_modified = last_modified_time;
+
+  base::MessageLoopProxy::current()->PostTask(
+      FROM_HERE, base::Bind(callback, base::File::FILE_OK, file_info));
+}
+
 const ProvidedFileSystemInfo& FakeProvidedFileSystem::GetFileSystemInfo()
     const {
   return file_system_info_;
 }
 
 RequestManager* FakeProvidedFileSystem::GetRequestManager() {
   NOTREACHED();
   return NULL;
 }
 
 ProvidedFileSystemInterface* FakeProvidedFileSystem::Create(
     extensions::EventRouter* event_router,
     const ProvidedFileSystemInfo& file_system_info) {
   return new FakeProvidedFileSystem(file_system_info);
 }
 
 }  // namespace file_system_provider
 }  // namespace chromeos